Segmented Piston Head Compression Conduits for Staged Fuel Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional progressive impulse internal combustion engines face limitations in compressed fuel delivery due to varying compression ratios as the piston travels, preventing full utilization of the pockets along the cylinder wall, which restricts the engine's ability to maximize fuel compression and power output.
Innovation Solution
The system incorporates a piston head with compression conduits that extend through the piston and cylinder walls, allowing for staged delivery and ignition of compressed fuel/air mixtures, maximizing the compression ratio and applying force over a longer moment arm for increased torque.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If pockets are located at varying heights along the cylinder wall to enable progressive ignition, then power stroke duration is improved, but fuel compression efficiency deteriorates because compressed fuel cannot be delivered during full compression
Solution Approach 1:
The piston head is segmented with multiple compression conduits positioned at different heights, allowing different pockets to be filled at different compression stages. This segmentation enables the system to achieve both extended power stroke duration and improved fuel compression efficiency by distributing the compression process across multiple stages rather than a single uniform compression event.
Solution Approach 2:
Fuel compression is performed preliminarily at varying compression ratios before the pockets are sealed, maximizing the compression ratio of the fuel/air mixture in each pocket. This preliminary compression action ensures that fuel is compressed efficiently before the power stroke begins, resolving the contradiction between compression efficiency and power stroke duration.
2Productivity
If compression conduits are added to deliver compressed fuel to pockets, then fuel delivery is improved, but device complexity increases
Solution Approach 1:
The compression conduits are merged directly into the piston head structure, integrating the fuel delivery function with the existing piston design. This merging approach improves fuel delivery efficiency to the pockets while minimizing the increase in device complexity by utilizing the piston head's existing structural framework rather than adding separate, independent delivery mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances volumetric efficiency and power stroke torque by ensuring consistent fuel compression and staged burning, overcoming the limitations of conventional engines by optimizing fuel delivery and ignition timing.
Implementation Method 1
The system incorporates a piston head with compression conduits that extend through the piston and cylinder walls, allowing for staged delivery and ignition of compressed fuel/air mixtures, maximizing the compression ratio
Implementation Method 2
On the power stroke the charge in compression space 109 over the head is ignited, the resulting pressure acting to force the piston down, and as the pockets 113 are uncovered the portions of the charges contained therein are also ignited and burned, producing a supplemental power impulse
Data Source
AI summary
A piston system includes a piston housing having a cylindrical body and forming an opening; a piston head positioned within and slidingly engaged with the opening; a first conduit extending from a side of the piston head to a top surface of the piston head; a first pocket extending partially within the cylindrical body of the piston housing.